/* ============================================================
   Collection of Time · 主样式
   设计要点：CSS 变量驱动主题、响应式栅格、无依赖
   ============================================================ */

:root {
  --font-sans: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Mono", Consolas, monospace;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --maxw: 1240px;
  --gap: 20px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 深色（默认） ---------- */
[data-theme="dark"] {
  --bg: #0b0d10;
  --bg-soft: #12151a;
  --bg-elev: #171b21;
  --border: #262c35;
  --text: #eef1f5;
  --text-soft: #a4adba;
  --text-mute: #6f7885;
  --accent: #4ea1ff;
  --accent-soft: rgba(78, 161, 255, 0.14);
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.55);
  --scrim: rgba(6, 8, 11, 0.86);
  --skeleton: linear-gradient(90deg, #1a1f26 25%, #232932 50%, #1a1f26 75%);
}

/* ---------- 浅色 ---------- */
[data-theme="light"] {
  --bg: #fbfbfc;
  --bg-soft: #f3f5f8;
  --bg-elev: #ffffff;
  --border: #e2e6ec;
  --text: #12161c;
  --text-soft: #59616d;
  --text-mute: #8b939f;
  --accent: #1668d6;
  --accent-soft: rgba(22, 104, 214, 0.1);
  --shadow: 0 16px 40px rgba(16, 24, 40, 0.12);
  --scrim: rgba(250, 251, 253, 0.9);
  --skeleton: linear-gradient(90deg, #eceff3 25%, #f6f7f9 50%, #eceff3 75%);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button,
input,
select { font: inherit; color: inherit; }

h1, h2, h3 { line-height: 1.2; margin: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ============================================================
   顶部导航
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(18px, 4vw, 44px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: conic-gradient(from 210deg, var(--accent), #ff8a4e, var(--accent));
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong { font-size: 15px; letter-spacing: 0.2px; }
.brand__text small { color: var(--text-mute); font-size: 11px; letter-spacing: 0.16em; }

.site-nav { display: flex; align-items: center; gap: 6px; }

.site-nav a {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-soft);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.site-nav a:hover { color: var(--text); background: var(--bg-soft); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-left: 6px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg-elev);
  cursor: pointer;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.icon-btn:hover { transform: rotate(-18deg); border-color: var(--accent); }

/* ============================================================
   通用容器
   ============================================================ */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 44px) 80px;
}

.section-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 48px 0 18px;
}

/* ============================================================
   Hero
   ============================================================ */
.hero { padding: clamp(48px, 9vw, 96px) 0 8px; max-width: 760px; }

.hero__eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero__title {
  font-size: clamp(34px, 6vw, 60px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero__desc { color: var(--text-soft); margin: 18px 0 30px; font-size: 16px; max-width: 56ch; }

.hero__stats {
  display: flex;
  gap: 12px;
  margin: 0;
  flex-wrap: wrap;
}

.hero__stats > div {
  padding: 12px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
  min-width: 104px;
}

.hero__stats dt { font-size: 11px; letter-spacing: 0.16em; color: var(--text-mute); text-transform: uppercase; }
.hero__stats dd { margin: 2px 0 0; font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums; }

/* ============================================================
   工具栏
   ============================================================ */
.toolbar {
  position: sticky;
  top: 61px;
  z-index: 30;
  margin-top: 44px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--bg-soft) 92%, transparent);
  backdrop-filter: blur(12px);
  display: grid;
  gap: 14px;
}

.toolbar__row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.toolbar__row--chips { gap: 10px; }
.toolbar__row--meta { justify-content: space-between; }

.search {
  flex: 1 1 280px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.search__icon { color: var(--text-mute); font-size: 18px; }
.search input { flex: 1; border: 0; background: transparent; outline: none; min-width: 0; }

.search__clear {
  border: 0;
  background: transparent;
  color: var(--text-mute);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
}

.search__clear:hover { color: var(--text); }

.select {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-mute);
}

.select select {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  padding: 9px 12px;
  cursor: pointer;
}

.chipgroup { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.chipgroup__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--text-soft);
  padding: 6px 13px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.18s var(--ease);
}

.chip:hover { color: var(--text); border-color: var(--accent); }

.chip[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.chip__count { opacity: 0.6; margin-left: 6px; font-size: 11px; }

.result-count { margin: 0; font-size: 13px; color: var(--text-mute); }

.link-btn {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  font-size: 13px;
}

.link-btn:hover { text-decoration: underline; }

.link-btn:disabled {
  color: var(--text-mute);
  cursor: default;
  text-decoration: none;
  opacity: 0.6;
}

/* ============================================================
   相册总览
   ============================================================ */
.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--gap);
}

.album-card {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
  cursor: pointer;
  text-align: left;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.album-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); }

.album-card__media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-soft); }
.album-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.album-card:hover .album-card__media img { transform: scale(1.06); }

.album-card__placeholder {
  display: block;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(45deg, var(--bg-soft), var(--bg-soft) 12px, var(--bg-elev) 12px, var(--bg-elev) 24px);
}

.album-card__body { padding: 12px 14px 14px; }
.album-card__name { font-size: 15px; font-weight: 600; }
.album-card__meta { font-size: 12px; color: var(--text-mute); margin-top: 2px; }

.album-card[aria-pressed="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* ============================================================
   作品网格
   ============================================================ */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--gap);
  align-items: start;
}

.card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  animation: card-in 0.4s var(--ease) both;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); }

.card__trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  text-align: left;
}

.card__media { position: relative; aspect-ratio: 3 / 2; background: var(--bg-soft); overflow: hidden; }

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease), opacity 0.4s var(--ease);
  opacity: 0;
}

.card__media img.is-loaded { opacity: 1; }
.card:hover .card__media img { transform: scale(1.05); }

.card__badge {
  position: absolute;
  left: 10px;
  top: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: #fff;
  background: rgba(10, 12, 16, 0.62);
  backdrop-filter: blur(6px);
}

/* ---------- 视频卡片 ---------- */

/* 缺失标记（封面缺失 / 视频文件缺失），由服务端字段驱动 */
.card__flags {
  position: absolute;
  right: 10px;
  top: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.card__flag {
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  color: #fff;
  background: rgba(180, 40, 40, 0.78);
  backdrop-filter: blur(6px);
}

.card__placeholder {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--bg-soft);
}

/* 播放按钮 */
.play-badge {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(10, 12, 16, 0.55);
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(6px);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}

.play-badge::after {
  content: "";
  position: absolute;
  left: 55%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 10px 0 10px 16px;
  border-color: transparent transparent transparent #fff;
}

.card--video:hover .play-badge {
  transform: scale(1.1);
  background: var(--accent);
}

/* 外链视频的角标：一个「↗」，说明点了会离开本站、去原站播放 */
.play-badge--out {
  width: 46px;
  height: 46px;
}

.play-badge--out::after {
  content: "↗";
  border: 0;
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 22px;
  line-height: 1;
  color: #fff;
  transform: none;
}

/* 时长角标 */
.card__duration {
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding: 3px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.4;
  color: #fff;
  background: rgba(10, 12, 16, 0.68);
  backdrop-filter: blur(6px);
  font-variant-numeric: tabular-nums;
}

.card__body { padding: 12px 14px 14px; display: grid; gap: 6px; min-width: 0; }
.card__title { font-size: 15px; font-weight: 600; overflow-wrap: anywhere; }
.card__meta { font-size: 12px; color: var(--text-mute); display: flex; gap: 8px; flex-wrap: wrap; overflow-wrap: anywhere; }
.card__meta--date { font-variant-numeric: tabular-nums; }
/* 外链视频：提示这一点会跳到原站，不在站内播放 */
.card__meta--out { color: var(--accent); }

.card__tags { display: flex; gap: 6px; flex-wrap: wrap; }

.tag {
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 999px;
  color: var(--text-soft);
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

/* 骨架屏 */
.card--skeleton { pointer-events: none; }
.card--skeleton .card__media { aspect-ratio: 3 / 2; }
.skeleton-line {
  display: block;
  height: 10px;
  border-radius: 6px;
  background: var(--skeleton);
  background-size: 200% 100%;
  animation: shimmer 1.3s linear infinite;
}
.skeleton-line--lg { width: 62%; }
.skeleton-line--sm { width: 40%; height: 8px; }

@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

.empty-state {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 70px 0;
  color: var(--text-mute);
  text-align: center;
}

.empty-state__glyph { font-size: 34px; opacity: 0.55; }

/* 分页：加载更多（页码与 hasMore 来自服务端 meta） */
.load-more-wrap { display: grid; justify-items: center; margin-top: 26px; }

.load-more {
  min-height: 44px;
  padding: 10px 26px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--text-soft);
  font-size: 13.5px;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.load-more:hover { color: var(--text); border-color: var(--accent); background: var(--accent-soft); }
.load-more[disabled] { opacity: 0.55; cursor: progress; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 26px clamp(18px, 4vw, 44px);
  color: var(--text-mute);
  font-size: 13px;
  display: grid;
  gap: 4px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.site-footer p { margin: 0; }
.site-footer code {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

/* ============================================================
   响应式（手机优先的可用性）
   ============================================================ */
@media (max-width: 860px) {
  .site-header { gap: 10px; padding: 10px 16px; }
  .site-nav { gap: 2px; }
  .site-nav a { padding: 10px 10px; font-size: 13px; }
  .icon-btn { width: 44px; height: 44px; margin-left: 4px; }

  /* 工具栏不再吸顶，搜索与排序各占满一行 */
  .toolbar {
    position: static;
    margin-top: 30px;
    padding: 14px;
    border-radius: var(--radius);
    gap: 12px;
  }

  .toolbar__row { gap: 10px; }
  .search { flex: 1 1 100%; padding: 12px 14px; }

  .select { flex: 1 1 100%; justify-content: space-between; }
  .select select { flex: 1; min-width: 0; min-height: 44px; border-radius: var(--radius-sm); }

  /* chips 在容器内部换行 / 纵向滚动，绝不撑出横向页面滚动 */
  .chipgroup {
    width: 100%;
    max-height: 116px;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .chip { min-height: 36px; padding: 8px 14px; }

  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .album-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .album-card__body { padding: 10px 12px 12px; }

  .hero { padding: 34px 0 4px; }
  .hero__desc { font-size: 15px; margin: 14px 0 22px; }
  .hero__stats { gap: 10px; }
  .hero__stats > div { flex: 1 1 90px; min-width: 0; padding: 10px 14px; }

  .section-title { margin: 34px 0 14px; }
}

@media (max-width: 720px) {
  .site-nav a { display: none; }
}

@media (max-width: 480px) {
  main { padding: 0 14px 56px; }
  .gallery { grid-template-columns: 1fr; }
  .card__media { aspect-ratio: 4 / 3; }
  .hero__title { font-size: clamp(30px, 9vw, 42px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}